Just a guess on my part, but I doubt they can feel the sub from the ground. The sub's frequency response is measured, with the sub in the air, so that there are no reflections from any surface, specifically the ground, that could influence the results. Welcome to the forum!!!

The Telco where I work has to hire licensed tower climbers (by law) to do any work on our cell towers. Is that tower high enough you have to do the same or would the regulations even be the same in Ontario?

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With great power comes Awesome irresponsibility.

Hi Jared555, No you can't feel the subs on the ground, in fact you can barely hear it. We use walkie-talkies between the person in the lab and the one at the pole so that the person at the pole knows when the sweep is finished. We sweep at around 100 dB.